A tinge of regret descended on Christopher Lee when he talked about his relationship with his young son. The local actor is mostly based in Taiwan these days and whenever he returns to Singapore, he said Zed would take some time to warm up to him. Appearing as the latest guest on fellow actor Jeanette Aw's YouTube talk show JA Unscripted on Sunday (Aug 2), the 55-year-old shared that he always scheduled to return home during Zed's school holidays. "My son is 11 years old now. I've already missed a lot of his [growing up], he said. "From when he was around seven to eight years old till now, where he's about to enter his teenage years, I…